Chris Petrovic (pictured above) is the general manager of GameStop Digital Ventures. His job is to make sure that the world’s largest video game retailer crosses over into the digital era, when gamers are as likely to download a digital game to their computers or phones as they are to walk into a store and buy a disk. GameStop still has 6,614 stores and annual revenues of $49.5 billion. Within a couple of years, the company wants to grow its digital revenues to $1.5 billion a year. The retailer grew its downloadable content sales by 315 percent last year, and it has acquired digital game startups Kongregate, Spawn Labs, and Impulse. Will that be enough for the company to “cross over” to the digital age?